Mexicanmade Wrote:Sorry for the bump but I'm having related trouble as the other people. It doesn't Work for me on 3.80M33 or 3.90M33, the last time i tested it i was one 3.71M33 and it worked but now that I'm on 3.90M33 it just plays the original sony sound even when I've replaced it.

also my wav is in atrac3. If you have a solution please post.

it has to work my friend.if the one for 371 worked then try a update like chose to browse for prx and then make the new you shouldn't have to though as if you are going to the wav it will work even if its not atrac3 the psp will still boot and work but u will hear no sound.being that you are hearing the original sound the reason is pointing to the replacement of the prx it self.im sorry if that doesn't help u man but i really don't know what else to tell you.